Question

The table below shows the scores of a group of students on a 10-point quiz.

Test Score | Frequency |
---|---|

3 | 3 |

4 | 3 |

5 | 5 |

6 | 2 |

7 | 2 |

8 | 3 |

9 | 0 |

10 | 2 |

**The mean score on this test is:**

**The median score on this test is:**

Answer #1

1) The formula of mean is as , mean=

f=frequecy,x=test score,N=total of frequecies

Use following table to get numerator,

Therefore,

mean score =116/20=5.8

2) Meadian:

Total of frequncy = 20(even number)

Since the number of scores is even, the median is at the average of the (n/2)th=(20/2)=10th position and [(n/2)+1] = 11th position

To find out the 10th position and 11th position, we add up the frequencies as shown:

The score at the 10th position is 5 and the score at the 11th position is 5. The median is the average of the scores at 10th and 11th positions=(5+5)/2=5

Therefore,median score=5

The table below shows the scores of a group of students on a
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Test Score
Frequency
3
2
4
2
5
1
6
4
7
3
8
4
9
2
10
5
The mean score on this test is: __________
The median score on this test is: _________
Box 1: Enter your answer as an integer or decimal number.
Examples: 3, -4, 5.5172
Enter DNE for Does Not Exist, oo for Infinity
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Scores on the 2nd Sat
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392
532
2
421
523
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439
427
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340
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493
444
6
457
490
7
396
428
8
400
524
9
510
532
10
409
397
11
413
550
12
339
357
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2
3
4
5
6
7
8
9
Frequency
5
8
11
5
3
1
2
1
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1
2
3
4
5
6
7
8
9
10
11
12
13
14
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474
634
409...

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